參數(shù)資料
型號(hào): TPS40211DRCTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10
封裝: GREEN, PLASTIC, SON-10
文件頁數(shù): 17/47頁
文件大小: 1375K
代理商: TPS40211DRCTG4
10
9
8
7
VDD
BP
ISNS
GDRV
TPS40210/11
L
V
IN
UDG-07197
6
GND
R
IFB
1
2
3
4
5
RC
SS
COMP
DIS/EN
FB
I
OUT
FB
IFB
OUT
V
R
I
=
SLUS772D – MARCH 2008 – REVISED APRIL 2010
www.ti.com
Figure 29. Typical LED Drive Schematic
The current in the LED string is set by the choice of the resistor RISNS as shown in Equation 31.
(31)
Where:
RIFB is the value of the current sense resistor for the LED string in
VFB is the reference voltage for the TPS40211 in V (0.260 V typ)
IOUT is the desired DC current in the LED string in A
24
Copyright 2008–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS40210 TPS40211
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